:root {
  --pearl: #fff5f8;
  --cream: #fff0f4;
  --surface: #ffffff;
  --plum: #2a1528;
  --plum-soft: #5c3a55;
  --magenta: #d63384;
  --magenta-light: #f065a8;
  --peach: #ff8fab;
  --coral: #ff6b6b;
  --lavender: #c77dff;
  --gold: #f4a261;
  --border: rgba(214, 51, 132, 0.18);
  --shadow: 0 12px 40px rgba(214, 51, 132, 0.12);
  --radius: 20px;
  --header-h: 58px;
  --sticky-ads-h: 0px;
  --max-w: 960px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--pearl);
  color: var(--plum);
  line-height: 1.9;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 80% 50% at 0% 0%, rgba(255, 143, 171, 0.22), transparent 60%),
    radial-gradient(ellipse 60% 45% at 100% 10%, rgba(199, 125, 255, 0.14), transparent 55%),
    url("data:image/svg+xml,%3Csvg width='6' height='6' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='0.6' fill='%23d63384' fill-opacity='0.06'/%3E%3C/svg%3E");
}

a { color: var(--magenta); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--coral); }

img { max-width: 100%; height: auto; display: block; }

.container { width: min(100% - 24px, var(--max-w)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 245, 248, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--plum);
  flex-shrink: 0;
}

.brand img { border-radius: 14px; width: 36px; height: 36px; object-fit: cover; box-shadow: 0 4px 14px rgba(214, 51, 132, 0.25); }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 0.95rem; letter-spacing: 0.04em; color: var(--magenta); }
.brand-text span { font-size: 0.64rem; color: var(--plum-soft); }

.main-nav {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  padding: 12px 16px;
  gap: 4px;
  box-shadow: var(--shadow);
}

.main-nav.open { display: flex; }

.main-nav a {
  color: var(--plum-soft);
  padding: 11px 14px;
  border-radius: 12px;
  font-size: 0.9rem;
}

.main-nav a:hover,
.main-nav a.active { color: var(--magenta); background: rgba(214, 51, 132, 0.08); }

.nav-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--magenta);
  font-size: 1.2rem;
  padding: 6px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.btn-dl {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  background: linear-gradient(135deg, var(--magenta), var(--peach));
  color: #fff;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(214, 51, 132, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-dl:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(214, 51, 132, 0.4); }

.btn-outline {
  background: transparent;
  border: 2px solid var(--magenta);
  color: var(--magenta);
  box-shadow: none;
}

.btn-outline:hover { background: rgba(214, 51, 132, 0.06); color: var(--magenta); }

.nav-btn-dl { display: none; }

/* Ads */
.ads-block {
  background: linear-gradient(180deg, var(--cream), var(--pearl));
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--border);
}

#ads, #sticky-ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  background: transparent;
}

#ads > div, #sticky-ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
}

#ads img, #sticky-ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(42, 21, 40, 0.12);
  transition: transform 0.18s, box-shadow 0.18s;
}

#ads a, #sticky-ads a { display: inline-block; border-radius: 15px; }

#ads img:hover, #sticky-ads img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(42, 21, 40, 0.18);
}

#ads .caption, #sticky-ads .caption {
  height: 15px;
  font-size: 11px;
  color: var(--plum-soft);
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}

.sticky-ads-wrap {
  position: sticky;
  top: var(--header-h);
  z-index: 150;
  background: rgba(255, 245, 248, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s, opacity 0.28s;
}

.sticky-ads-wrap.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

#sticky-ads > div { width: calc(25% - 6px); max-width: 80px; }

@media (min-width: 768px) {
  .main-nav { display: flex; position: static; flex-direction: row; background: none; border: none; padding: 0; box-shadow: none; gap: 2px; }
  .nav-toggle { display: none; }
  .nav-btn-dl { display: inline-flex; }
  #sticky-ads > div { width: calc(12.5% - 8px); }
}

/* Hero */
.autos-hero {
  padding: 36px 0 48px;
  text-align: center;
}

.autos-label {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(90deg, rgba(214, 51, 132, 0.12), rgba(199, 125, 255, 0.12));
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--magenta);
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}

.autos-hero h1 {
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  line-height: 1.35;
  color: var(--plum);
  margin-bottom: 20px;
  font-weight: 700;
}

.autos-lead {
  font-size: 0.95rem;
  color: var(--plum-soft);
  max-width: 720px;
  margin: 0 auto 16px;
  text-align: left;
}

.autos-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

/* Sections */
.autos-section {
  padding: 44px 0;
  border-top: 1px solid var(--border);
}

.section-ribbon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--lavender);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-ribbon::before {
  content: "";
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--magenta), var(--lavender));
}

.autos-section h2 {
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  color: var(--plum);
  margin-bottom: 18px;
  line-height: 1.4;
}

.autos-section h3 {
  font-size: 1.05rem;
  color: var(--magenta);
  margin: 22px 0 10px;
}

.autos-section p {
  margin-bottom: 14px;
  color: var(--plum-soft);
  font-size: 0.94rem;
}

/* Module layouts */
.module-text { max-width: 100%; }

.module-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 22px 0;
}

@media (min-width: 600px) {
  .module-cards.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .module-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.feature-card:hover { transform: translateY(-3px); }

.feature-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--magenta-light), var(--lavender));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.feature-card strong { display: block; color: var(--plum); margin-bottom: 6px; font-size: 0.92rem; }
.feature-card span { font-size: 0.84rem; color: var(--plum-soft); line-height: 1.65; }

.module-image {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.module-image img { width: 100%; }

.module-image figcaption {
  padding: 12px 16px;
  background: var(--surface);
  font-size: 0.82rem;
  color: var(--plum-soft);
  border-top: 1px solid var(--border);
}

.split-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
  margin: 24px 0;
}

@media (min-width: 768px) {
  .split-panel.img-left { grid-template-columns: 3fr 7fr; }
  .split-panel.img-right { grid-template-columns: 7fr 3fr; }
}

.timeline-block {
  position: relative;
  padding-left: 28px;
  margin: 18px 0;
}

.timeline-block::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--magenta), var(--lavender));
  border-radius: 2px;
}

.timeline-block .tl-item {
  position: relative;
  margin-bottom: 16px;
}

.timeline-block .tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--magenta);
  border: 2px solid var(--pearl);
}

.highlight-box {
  background: linear-gradient(135deg, rgba(214, 51, 132, 0.06), rgba(199, 125, 255, 0.06));
  border-left: 4px solid var(--magenta);
  padding: 18px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 20px 0;
}

.highlight-box p { margin-bottom: 0; }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.tag-row span {
  padding: 5px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--magenta);
}

/* Breadcrumb */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.82rem;
  color: var(--plum-soft);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.6);
}

.breadcrumb a { color: var(--magenta); }
.breadcrumb span { margin: 0 6px; color: var(--peach); }

/* Sub pages */
.page-hero {
  padding: 32px 0 24px;
}

.page-hero h1 {
  font-size: clamp(1.4rem, 4vw, 1.8rem);
  color: var(--plum);
  margin-bottom: 12px;
}

.page-hero .meta {
  font-size: 0.82rem;
  color: var(--plum-soft);
}

.legal-content h2 {
  font-size: 1.1rem;
  color: var(--magenta);
  margin: 28px 0 12px;
  padding-top: 8px;
}

.legal-content h3 {
  font-size: 0.98rem;
  color: var(--plum);
  margin: 20px 0 10px;
}

.legal-content p, .legal-content li {
  font-size: 0.9rem;
  color: var(--plum-soft);
  margin-bottom: 12px;
}

.legal-content ul, .legal-content ol {
  padding-left: 22px;
  margin-bottom: 16px;
}

/* Error pages */
.error-page {
  text-align: center;
  padding: 60px 0 80px;
  min-height: 50vh;
}

.error-page h1 {
  font-size: 4rem;
  background: linear-gradient(135deg, var(--magenta), var(--lavender));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.error-page p { color: var(--plum-soft); margin-bottom: 24px; }

/* Footer */
.site-footer {
  background: var(--plum);
  color: rgba(255, 240, 246, 0.85);
  padding: 36px 0 28px;
  margin-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (min-width: 600px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-grid h4 {
  color: var(--peach);
  font-size: 0.88rem;
  margin-bottom: 12px;
}

.footer-grid a, .footer-grid p {
  display: block;
  font-size: 0.82rem;
  color: rgba(255, 240, 246, 0.7);
  margin-bottom: 8px;
}

.footer-grid a:hover { color: var(--peach); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  font-size: 0.78rem;
  color: rgba(255, 240, 246, 0.5);
  text-align: center;
}